The Effective Altruism (EA) movement has garnered a lot of attention over the last year.

And it got a huge boost with the Zuckerbergs' announcement that they would donate 99% of their Facebook shares to charity.

The EA movement is now the world's largest and most influential organised philanthropy network. So why does it have so little to say about the refugee crisis - surely one of the major humanitarian issues of our time?

In the run-up to the General Election last year, it looked like the Green Party would be shut out of the televised debates.

After a fantastic grassroots campaign online, both ITV and the BBC bowed to popular demand and made the decision to give Green Party Leader Natalie Bennett a place on the rostrum.

At this week's Green Party conference we will be putting forward a proposal to adopt Rights of Nature into the Green Party's policies.

Central to this motion are the rights of nature to 'exist, persist, maintain and regenerate its vital cycles, as well as the right to restoration'.

Currently Britain's piecemeal environmental regulations consider nature as an object of commerce within the law, and thus they prevent us from protecting ecosystems in any meaningful sense.

This week, the front pages have been plastered with the news that trillions of dollars have been wiped off global markets, a dramatic shock which has been felt by all the main share indices worldwide.

The significance of these events depends on who you ask: some urge 'optimism', while others predict we may be on the cusp of a new Great Depression, at least as dangerous as the Great Recession of 2008, although different in kind. One thing is certain - we are entering a period of enormous uncertainty.

The 'austerity' issue is very much in the news. In last weekend's Observer, for example, it popped up in several articles.

On the front page a number of economists are quoted as supporting Jeremy Corbyn's "anti-austerity politics".

Inside there is an opinion piece by economics correspondent William Keegan who credits Corbyn for foregrounding the issue and challenging orthodox arguments for government spending cutbacks.

On another page, a "young Labour supporter" explains why she supports Corbyn because of his stance on "Tory austerity".

Like many Greens, I'm a huge fan of Jeremy Corbyn. I'm hoping that he wins the Labour Leadership election – and the latest polling suggests that he will. At the same time, I'm a Green, and without one shred of doubt I'm going to stay a Green. For Corbyn – for all his many virtues – is no Green. For he does not have an ecologistic approach.